The sanitization of Brazil's image before the 2014 World Cup could have serious implications for sex workers.
Drought-tolerant corn is off-limits to Tanzanian farmers as outside groups debate the best approach for easing hunger across Africa.
The Sri Lankan government still denies responsibility for the killing of up to 70,000 Tamil civilians at the end of the civil war in 2009. So why has it been chosen to host a Commonwealth summit?
Dr Mathew Varghese dreams of permanently overcoming the funding and education barriers faced by polio patients in India.
Photojournalist Sean Gallagher talks about climate change and environmental degradation on the Tibetan Plateau.
An initiative allowing the provenance of medicines to be verified using mobile technology is taking aim at the illegal drug trade. Too tall a task?
Last November, hundreds of women and children were raped in Minova, on the shores of Lake Kivu, by soldiers from the Congolese national army.
As the G8 discusses sexual violence in the Democratic Republic of Congo, perpetrators and victims speak out about mass rape in Minova.
Health workers in India are overcoming cultural mistrust about polio immunization by turning to local Muslim clerics for support.
Powerful supporters in security forces accused of complicity in brutal attacks by militia in Democratic Republic of the Congo.
A vast influx of Western medicine has unleashed an unregulated free-for-all in private dispensaries, critics say.
China is suspected as the source of counterfeit drugs that are holding back the fight against malaria in Africa.